Laserfiche WebLink
Development Schedule for phasing of the mining and reclamation time periods. <br />Water from Phase I mining azea will be pumped to the pond in Lot 6 with an overflow <br />to the large pond in Lot 10. If required, an overflow will be constructed from the lazge <br />pond in Lot 10 to the pond on the east side of 23 Road. Overflows will be piped. <br />11. The cottonwood trees will not be completely isolated by mining operation, the <br />existing lake side of the tree will be left undisturbed. If the tree show signs of stress, <br />water will pumped to them. <br />12. The maximum increase in disturbed will be 20 to 25 acres. This will include 10 acres <br />for the processing and stockpile site and the azea being mined and backfilled. <br />Maximum highwall height will be 24 feet. <br />13. Final slopes will be 3 to 1 except for some 5 to 1 slopes on the south side of the lake <br />to pacify the DOW. Compaction will be accomplished using wheel loaders, <br />Compaction will be azound 90% of standard proctor. <br />14. No seeding of the backfilled portion of Phase I was planned. However, do to the time <br />period until fmal reclamation is completed, some temporary seed will be required to <br />control dust. Total azea to be backfilled in Phase I is 24 acres. <br />15. See Development Schedule for reclamation timetable. <br />16. The topsoil stockpile is shown of the Mining Plan map. <br />17. The reclamation seed mix, with the Sand Drop Seed and Saltbrush deleted, will be <br />used to seed topsoil piles. <br />18 & 19. The scales will be removed after all stockpiled material has been removed from <br />the site. <br />20. The post mining land use for the backfilled azea of AM-03 will be a business that is <br />allowed in the Cities General Industrial zone(I-2). GJ Pipe may relocate it's precast <br />operation or move a ready mix concrete plant to the site after backfilling is <br />completed. Before this can happen, a site plan approval will be required by the City. <br />The time required to mine and backfill Lots 3 and 4 will be 6 or 7 years. Until a <br />definite plan is developed and approve by the City, Lots 3 and 4 will be returned to a <br />temporary agricultural use and seeded to control wind erosion. This azea contains 15 <br />acres and will be seeded into oats and alfalfa. Portions of Lot 5 and <br />6 will be used as a processing and stockpile azea for Phase III mining azea. <br />21. Permanent vegetation areas will include new slopes around the pond and any <br />disturbed azeas not intended for industrial. These azeas are estimated at 6 acres. <br />22. The dewatering of the large pond in Lots 9, 10, and 22 will be to the existing pond on <br />the east side of 23 Road and then to the drain ditch per the requirements of the <br />existing discharge permit. <br />23. Well Permit No. 057389-F has been issues by the Office of the State Engineer, copy <br />attached, for the use of 231.77 acre-feet/yeaz of ground water for the mining <br />operation. <br />24. Mining azound the cottonwood trees will be done using a buffer of 10 feet beyond the <br />drip line and then sloped at 3 to 1 to protect the roots. Trees will be watered if <br />required during the mining operation. <br />The City is requiring 30 plus tree along the north property line, this will mitigate any <br />cottonwood tress removed during the mining operation. <br />An azea of 5 to 1 slopes has been added to the lower pond. <br />Dikes that restrict the flow of the river aze not allowed by the Corp or Mesa <br />